Basic Qs about references to Word

Question

Hey folks,
this is my first posting here at c#corner. But I already read a couple of articles. This time however, I wasnt able to find an article that could help me out of my dilemma. Unfortunalty I don't really have a clue what I am doing, ergo I cannot offer a nice short and crisp error explenation. I'll just try my very best:
I am trying to manipulate a couple of word documents. All the manipulation works really well but that is not the problem. The problem is, when I try to run the program on an other computer. It immedialty throws a segmentation fault, which implies that it is not the c# stuff that crashes, but something else. My guess is that I use different references (dll's) with the computer I am developing with, and the other computer only has older or not the same references.
Does one of you have a clue what might be crashing my program?
Any hint/link/guess is deeply appreciated!!!
Thx in advance
Woltan